Filtration rack



FIG. 1 is a front-side perspective view of a first embodiment of a filtration rack showing my new design.

FIG. 2 is a front-side elevation view thereof.

FIG. 3 is a back-side elevation view thereof.

FIG. 4 is a top plan view thereof.

FIG. 5 is a bottom plan view thereof.

FIG. 6 is a front-side perspective view of a second embodiment of the filtration rack showing my new design.

FIG. 7 is a front-side elevation view thereof.

FIG. 8 is a back-side elevation view thereof.

FIG. 9 is a top plan view thereof.

FIG. 10 is a bottom plan view thereof.

FIG. 11 is a front-side perspective view of a third embodiment of the filtration rack showing my new design.

FIG. 12 is a front-side elevation view thereof.

FIG. 13 is a back-side elevation view thereof.

FIG. 14 is a top plan view thereof; and,

FIG. 15 is a bottom plan view thereof.

The broken lines in the drawings depict portions of the filtration rack that form no part of the claimed design. 

CLAIM The ornamental design for a filtration rack, as shown and described. 